Manufacture of sheet-metal blanks.



F. H. HULSQHER. MANUFACTURE OF SHEET METAL BLANKS.

Fm APPLICATIGN FILED SEPT- 29. I917. ZLBQL (QB Patented Apr. 22, 1919-.

2 SHEETS-SHEET l- FH.Hulsci ler' F. H. HULSCHER.

MANUFACTURE or SHEET METAL BLANKS.

Patented Apr. 22,1919.

APPLICATION FILED SEPT- 29, 1 917.

M Hh I awwmtoz I F.H.Hulscher 5W4,

' shuttle manufactured from the blank hav-.

semen in. Houseman,

urac'r crane-unease l r by AkLAlt-llth, GEQRJGIAQ Application andschemaea, rear. serial a} macro.

To all whom it may concern:

Be it known that l, FRANK H. Hnnsceur '1' a citizen of the Umted States,residm .at

Atlanta, in the county of Fulton and tate of Georgia, have invented newand useful Improvements in the Manufacture of Sheet- Metal Blanks, ofwhich the following is a specification. 1

This invention relates to the manufacture of sheet metal blanks, and theobject is to produce from one sheet, a blank which may be pressed intoproper form for the manutacture of a shuttle designed to carry a bobbinand to be used in a loom.

A further object is to form a blank of such construction that whenpressed into shape to form a device of the character indicated, saiddevice shall comprise integrally formed side members, and end members,portions of which are of substantially rectangular cross section andportions of which are tapered to form a conical nose portion.

A further object is to provide a blank including portions formedintegrally therewith for retaining a bobbin in position in a ing theconfiguration herein described.

A further object is to provide means for stifiening certain of themembers oi the blank by producing therein longitudinally extendingcorrugatlons.

A still further object is to form a blank in such manner that whenpressed into shape it shall include in connection with the structureabove specified, means for guiding the thread leading from the bobbin,and means for retaining the bobbin in position.

With the foregoing and other objects in view, the invention consists inthe novel construction, combination and arrangement of elementshereinafter described and claimed.

ln the "accompanying drawings:

Figure 1 is a plan view of the blank.

Fig. 2 is a plan View oi the shuttle formed from th blank afterthemembers thereof have been bent into proper position.

Fig. 3 is a view of the shuttle in longitudinalsection, the end portionsbeing in elevation.

Fig. 4e is a transverse section through that portion of the shuttle wallor walls engaging the bobbin.

The blank consisting of sheet metal and preferably of sheet steelincludes a plurality of longitudinally extending members and 12, thesemembers being corrugated in a direction lengthwise of the blank as awhole and the corrugations terminating at or about the point 14. Eachside member 10 and 12 1s inwardly deflected for the purpose of formingbobbin en aging devices designated 15 and 16, these evices comprisin aplurahty of vertically extending ribs wlth slots between the ribs. Thisstructure is more tally shown in Fig. l and the bobbin engag ing devicesare formed by stamping alter the blank shown in Fig. 1 is formed-but maybe formed incidentally to the production of the blank itself.

Between the longitudinal members 10 and 12 of the blank and at one endof the latter is a tongue 17 formed by slottin the blank at 18 and 19,this tongue being efiected inwardly when the blank is bent into positionfor forming a shuttle. Extending laterally from the end portions 10 and12 are members 20 and 21 each provided with a tongue, one of these beingdesignated 22 and the other 23, the tongue last named cooperating withthe tongue 17 when the blank is bent into position as above indicated.

' The opposite end out the blank is of similar configuration in generaloutline, but the corrugations extend to the line 25 which may be termeda base line from which the tapered end portions 26, 2'? and 28 project.These tapered portions are separated by cor responding tapered openings29, 30 reversely arranged w ith reference to the tapered rneln bers 26,27 and 28. Lateral extensions 30 and 31 correspond in position with themem hers 20 and 21 at the opposite end Oil the blank but the members 30andBl are not separated from the body portion of the blank but are to bedeflected along the lines 32 and 33 in the formation of the shuttle.

Each of the lateral extensions 30', 31, 20 and 21, is provided with atapered portion 3a, and these tapered portions and the ele ments formingthe base thereof meet along a line centrally of the bottom of theshuttle, and the meeting edges are secured by welding, the meeting edgesof the tapered portions being "likewise connected for the purpose 0rforming substantially continuous end portions.

An aperture all in one side member is con nected by a slot all with anaperture 42 having communication with the-cutaway por tion This cutawayportion re extends into the tongue ld projecting between thelongitudinally extending members lb and lllti 12 and terminates with anaperture 45. The thread passing through the apertures and tendlngmembers spaced apart and providing a longitudinal opening, saidlongitudinally extending members terminating in tapered portions andsaid blank being provided with a tapered portion at each end oppositethe ends of the opening,'and said blank being provided with a tongueprojecting into one end of the opening and cut away to form threadguiding means.

2. As an article of manufacture, a blank,

comprising a plurality of longitudinally extending members spaced apartand connected" at their ends, said connecting portions and saidlongitudinally extending members being provided with tapered portions,and said blank including laterally extending members'carryingtaperedportions having substantially one-half the dimensions of'the taperedportions first named, and said blank including a tongue projecting intothe opening and provided with thread guiding means.

3. As an article of manufacture, a blank comprising a plurality oflongitudinally extending members connected at their ends, the blankterminating at each end in a plurality of tapered portions, the ends ofthe tapered portions being equally spaced apart, and said blankincluding inwardly extending devices forming ribs extending transverselyof the longitudinally extending members.

4. As an article of manufacture, a blank comprising a plurality oflongitudinally extending members, one of said members having alongitudinal slot therein, and said members being spaced apart to form alongitudinal opening, the blank including a tongue projecting into oneend of the opening and provided with a cutaway portion forming threadguiding means, said blank including a diagonally extending slot communicating with an aperture formed in one of the longitudinallyextending members, and said tongue being slotted to form a memberadapted-to be deflected at an angle with the tongue.

5. As an article ofmanufacture, a blank having an approximately centrallongitudiprovided with an approximately centrally located openingextending longitudinally and with a plurality of tapered portionsequally spaced at each end of the blank, the tapered portions at theopposite sides of the blank being of substantially one-half thedimensions of the tapered portions intermediate thereof, and a tonguecarried by the body portion of the blank and projecting into the openingtherein..-

7. As an article of manufacture, a blank provided with an approximatelycentrally located opening extending longitudinally and with a pluralityof tapered portions equally spaced at each end of the blank, the taperedportions at the opposite sides of the blank being of substantiallyone-half the dimensions of the tapered portions intermediate thereof.

8. As an article of manufacture, a blank comprising a plurality oflongitudinally extending members each provided with a series of slotsextending transversely thereof, said members being spaced to form alongitudinal opening, the blank including a tongue proecting into oneend of'the opening and provided with a cutaway portion forming anelongated opening with curved edge portlons andwith thread guidingapertures oppositely located near certain of the meeting edges of theopening, the blank being scored along a line intersecting others of themeeting edges, and the blank being provided with a diagonal slotcommunicating with one of the thread openings and extending partlythrough one of the aforesaid longitudinal members.

In testimony whereof I affix my signature.

FRANK H. HULSOHER.

